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Finding the Fourth Proportional to 483,205.60, 724,808.40 and 476,207.20

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Solution

The fourth proportional to 483,205.60, 724,808.40 and 476,207.20 is: 714,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,205.60 : 724,808.40 = 476,207.20 : x
  2. Step 2: Convert to fraction form
    483,205.60/724,808.40 = 476,207.20/x
  3. Step 3: Cross multiply
    483,205.60x = 724,808.40 × 476,207.20
  4. Step 4: Simplify right side
    483,205.60x = 345,158,978,700.48
  5. Step 5: Solve for x
    x = 345,158,978,700.48/483,205.60
  6. Step 6: Final answer
    x = 714,310.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.